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I will use the standard algorithm to divide decimals.

I will use the standard algorithm to divide decimals. L22 Dividing Decimals. I will be able to find the quotient in 4 of 5 classwork problems. Food for thought:. Suppose you have $10.40 and you want to buy as many $0.65 spider rings as possible.

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I will use the standard algorithm to divide decimals.

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  1. I will use the standard algorithm to divide decimals. L22 Dividing Decimals I will be able to find the quotient in 4 of 5 classwork problems.

  2. Food for thought: Suppose you have $10.40 and you want to buy as many $0.65 spider rings as possible. • How can you figure out how many spider rings you can buy?

  3. Remember the parts of a division problem: Quotient: answer 9 5 45 Dividend: The amount that you want to divide up. Divisor: The number you divide by

  4. Dividing a Decimal by a Whole Number • Place the decimal point in the quotient directly above the decimal point in the dividend. • Divide as you normally would (DMSCB)

  5. Example 1 DMSCB 2 . 5 5 12.5 10 2 5 25 0

  6. Dividing a Decimal by a Decimal • Move the decimal point in the divisorto the right, until you get to the end of the digits. • Count how many places you moved that decimal. • Move the decimal point in the dividend the same number of places to the right.

  7. Example 2 0.3 6.72 one space 03 67.2 New problem

  8. Example 2 Solve: 2 2 . 4 DMSCB 3 67.2 6 0 7 6 1 2 1 2 0

  9. Example 3 0.38 13.3 The decimal must be moved 2 spaces to the right. When we move this one 2 spaces, we find that we need to add a space. What will we fill it with? Answer: Fill it in with a 0. 13.3 becomes 1330 SO, our problem becomes 038 into 1330. 038 is the same as 38.

  10. 3 5. Example 3 38. 1330. Find quotient and share answer with a shoulder buddy. 114 19 0 190 0

  11. Reflect: fist to 5 I will use the standard algorithm to divide decimals. Assess I will be able to find the quotient in 4 of 5 classwork problems.

  12. Classwork • 17.4 3 • 100.38 21 • 3.14 0.2 • 0.816 0.68 • Suppose you have $10.40 and you want to buy as many $0.65 spider rings as possible.

  13. The Basics: • When you multiply by 10, 100, or 1,000, you can move the decimal point to the right. • The number of decimal places you move is the same as the number of zeroes you are multiplying by. • When you divide by 10, 100, or 1,000, you can move the decimal point to the left. Move the decimal point once for each zero you are dividing by.

  14. 1.492 x 100 Move the decimal to the right: two spaces. 149.2

  15. 2,124.94 ÷ 1,000 Move the decimal to the left: three spaces. 2.12494

  16. 4.2 ÷ 100 Move the decimal point to the left: two spaces. Add a zero for the second space. .042

  17. 15.36 x 1,000 Move the decimal point to the right: three spaces. Add a zero for the third space. 15,360

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